Not sure now if they put in the right sensor they got it from Pete. With wire off does it run full speed. They put the sensor right next to the other two and pluged the coolant line. They also think it might be the thermostat but I do not know where that is.

There's two thermostats. In the picture Shane posted in post #4, as well as your picture in post #5, showing the two sensors, that is the housing for one of the thermostats.

Well, with the limited information that I have, I would guess that they put a "typical" close-on-rise thermostat switch in there. You said it was running when you left and then quit running. That leads me to believe that once the engine got warm, the fan shut off. Just disconnect the wires and your engine should run VERY cool the rest of the trip. Try and keep your speed around 65... don't hammer it! The oil in that fan sump will be getting very hot if you run wide open.

This whole trip I have only been running about 62, did not want to push her to hard.

You'll be pretty close to George Morris, a retired BB tech from the factory. He has his own shop now and can get your coach straightened out. A slow-running fan could be caused by dirty filters, a worn out fan motor (is it dripping oil from the shaft) or a worn-out hydraulic pump (is the coach hard to steer?) The fan and power steering are both powered by the same gear pump on the engine. If your steering is hard, then the pump could be failing, resulting in low pressure at the engine fan too.

Steering works great, the tech said he did see fluid dripping from that area.